ZHCSL09C April 2020 – December 2020 LM7480-Q1
PRODUCTION DATA
LM7480x-Q1 controls two N-channel power MOSFETs with DGATE used to control diode MOSFET to emulate an ideal diode and HGATE controlling second MOSFET for power path cut-off when disabled or during an overvoltage protection. HGATE controlled MOSFET can be used to clamp the output during overvoltage or load dump conditions. LM7480x-Q1 can be placed into low quiescent current mode using EN/UVLO, where both DGATE and HGATE are turned OFF.
The device has a separate supply input pin (Vs). The charge pump is derived from this supply input. With the separate supply input provision and separate GATE control architecture, the LM7480x-Q1 device offers flexibility in system design architectures and enables circuit design with various power path control topologies like common drain, common source, ORing and Power MUXing. With these various topologies, the system designers can design the front-end power system to meet various system design requirements. For more information, see the Six System Architectures With Robust Reverse Battery Protection Using an Ideal Diode Controller Application Report.